Refrigerator.



No. 756,004. PATBNTED MAR. 29, 1904.

J. M. DOPPEL.

v REFRIGERATOR.' APPMoATIoN FILED un. 5, 1903.

N0 MODEL.

llllllllllllllw/TNESSES UNITED STATES Patented March 529, 1904.

PATENT OFFICE.

vJOHN M DOPPEL, OF NEW YORK, N. Y.

` REFRIGEnA-ron.

SPECIFICATION forming part of Letters Patent No. '7.576,004, dated March 29, 1904.

Application led March 5, 190B.

To all whom, t may concern:

`Be it known that I, JOHN M. DOPPEL, a citizen of the -United States, anda resident of the city of New York,v borough of-,Brooklym in the county, of Kings and State of New York, have invented a new and useful Improvement in Refrigerators, of which the following is a'.

full, clear, and exact description. n

Y My invention relates to the construction of refrigerators in which receptacles containing ice-cream are to be stored 'or from which the cream is served.

The purpose of the invention is to so con struct the refrigerator that while itis packed with a non-heat-conducting material a perfect circulation ofair will be obtained practically around both sides of the packed section, to

which end air-Ventilating spaces or chambers are located between the packed section and the inner box or receiving section and the said packed section and the outer box or casing section, which air spaces or 'chambers have suitable connection -with the outside atmosphere. l

Another purpose of the invention is to utilize the innerventilating or air space as a conductor for the products of evaporation or condensation and direct thesaid products to a chamber below the inner vbox or receiving Asection and to provide the's'aid lower chambervwith awaterproof lining andan outlet adapted-for connection with an oiftake and also to provide the inner box or receiving section with a huid-conducting device in op- -er'ative connection with the said offtake for the outer or casing section. f

The invention consists, 1n the novel construction and combination of the several parts,

as will be hereinafter -fully set forth, and pointed out in the claims.

erator arev preferably made of soft wood, pare Serial No.1146,355. (No model.)

` tially of clear white pine and partially of spruce, for example, .while the top portion of the refrigerator is preferablyconstructed of ahard wood. The refrigeratoris practically rectangular and maybe of any desired width -and length. l

In the .construction of the body portion of the refrigerator an outer box-casing section A is employed, including end, front, and back members, together with a bottom member suitably joined and a correspondingly-formed inner or receiving box section B vof less dimensions than the outer or casing seetion'A; but the upper edge of the inner box or receiving sectionB is practically flush with the corresponding portion of the outer or casing section A.- Thus it will be observed that a space is provided between the front and rear and end portions of the two box-sections, and likewise a space is formed between the bottom of the l two sections A and B, .the latter space being adapted as a moisture-collecting chamber 15, to be hereinafter more particularly referred to. The space between the front, rear, and end portions of the two box-sections A and B is of greater width than the depth of the moisture-receiving chamber 15, and in the said space between ythe upright members of the two box-sections A and B intermediate of their opposing faces two spaced partitions l0 8Ol and l1 -are located, extcnding'from the bottom of the outer or casing section A to they top edge thereof, and the space between these two'intermediate partitions 10 andll is provided with a packing of felt l2, sawdust, or

other non-heat-conducting material. By rea- 'son of the introduction ofv the intermediate packed-'section just ldescribed an outer air space or chamber 13 is formed between the intermediate packed section and. the opposing r walls of the outer box-section A, and this air space or chamber 13 is closed at the'top and at the bottom. -Furthermore,l an inner air space or chamber 14 is also provided corresponding to the outer airspace or chamber 13; lbut the inner air space orvchamber 14: at its lower end is in communicationwith the moisture-receiving chamber l5 at the bottom portion of the refrigerator. The inner air space or chamber 14V servesnot only to keep 100 the inner box-section B cool; but any condensation which may occur at the outer face of the said inner box-section B is conducted downward by the said chamber or space 14 to the bottom chamber 15. Communication is established between the outside atmosphere and both of the air spaces or chambers 13 and 14 through the medium of tubes 16, which are passed through the front and the rear walls of the outer box-casing section A and through the intermediate packed section between the two box-sections, one end of each tube being in communication with the outside atmosphere and the other in communication with the inner chamber or air-circulating spaceli. Each tube 16 is provided with apertures 17, so located as to permit the air passing through the tubes 16 to escape into the outer Ventilating or air-receiving chamber 13, as is shown in Fig. 2. It will likewise be observed by reference to the same figure that suitable spacing-blocks 18 are employed at the top and at the bottom portions of the space between the two box-sections A and B, whereby to hold the intermediate packed section in position and to support the inner box-receiving section B.

A lining 19, of metal or other waterproof material, is provided for the bottom of the chamber 15, receiving the products of evaporation, and this lining is preferably made to extend upward a suitable distance along' the inner wall of the outer or box-casing section A, as is clearly shown in Fig. 2, and the said inner wall of the outer or box section A is also provided above the upper edge of the metal lining 19 with a covering 20, of paper or other non-conductor, and the outer vertical wall of the inner box or receiving section B is provided with a similar covering 21, extending throughout the height of the vertical members of the said inner or receiving section B, as is also shown in Fig. 2.

The top C, provided for the body just described, is preferably made of hard wood, although any material may be employed, and includes an upper horizontal member 22 and a lower horizontal member 23, separated at the ends and back of the said cover by strips 24 and 25, forming between them an air-space 26. Air from the outside atmosphere is admitted to the space 26 through openings 27, which extend through the outer spacing-strips 24, as is shown by dotted lines in Fig. 2. The lower member 23 of the top is provided with one or more openings 28 in direct communi-l cation with the inner or receiving-box section B, and the upper portion of the said top above each opening 28 is provided with a recess 29, extending from a point at the rear of each opening 28 beyond the sides of the said opening and out to the front portion of the refrigerator, as is best shown in Fig. 1. A cover or lid 30 is adapted to slide in each of the recesses 29, and when the cover is in its rear position it closes the opening 28, over which it has movement, and by drawing the cover or lid outward or forward the opening 28 to which it belongs is exposed, and access may be gained to the contents of the inner box-receiving section B below the opening thus exposed. Each cover or lid 3() is preferably provided with an air-chamber 31 between its top and bottom surfaces, as is indicated in Fig. 2.

An opening is made in the bottom of the outer box-casing A, and an oHtake-pipe 32 extends up into the said opening, being preferably provided with a bell'- shaped or enlarged upper end. This oiftake-pipe 32 is adapted to conduct away any iuid that may be collected in, the lower or Huid-receiving chamber 15, which chamber, as stated, receives the products of evaporation or condensation from the air space or chamber 14, and any liquid which may collect in the inner receiving-box section B will find its escape through conducting-pipes 33, fitted in the bottom portion of said inner box-section, which conducting-pipes 33 are made to loosely enter the upper or enlarged portionsof the offtakepipes 32, as is illustrated in Fig. 2.

It w ill be observed that when the refrigerator is constructed as above set forth it is particularly adapted to preserve ice-cream or like substances in cans and that the cold air will be held in the refrigerator for a maximum of time; and that the refrigerator may be in a comparatively warm place without the heat materially raising the temperature within the refrigerator. Furthermore, it will be observed that the refrigerator is a particularly clean one and that all of the iuid which may be formed or contained in the refrigerator will ind a ready and perfect exit, thus rendering the Hoor-space around the refrigerator dry, which is a great advantage, as under the ordinary construction of refrigerators adapted for similar purposes such leakage occurs as to render the Hoor around the refrigerator exceedingly damp and injurious to health.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A refrigerator, consisting of an outer box-section, an inner box-section smaller than the outer section and arranged therein with its bottom spaced from the bottom of the outer section, the upper edges of the inner section being flush with the upper edges of the outer section, filled partitions in the spaces between the sides and ends of the sections, said partitions extending from the bottom of the outer section to the tops of said sections, and forming two chambers, the outer end of which is closed at top and bottom and the inner one closed at top and opening at the bottom into the space between the bottoms of said sections, open-ended tubes extending through the upper portion of the outer box-section and through the partitions, said tubes being apertured in the -portions in the outer cham- IOO lIO

ber, an outlet-pipe leading from the bottom of each section, the pipe from the inner section extending into the pipe of the outer sec'- tion, a top formed of two members having between them an air-space which communicates with the outer air, the inner member of the top being apertured and the outer inember recessed, and a sliding cover in the recess of the outer member of the top, `as set forth.

2. A refrigerator, comprising an outer boX- section, an inner box-section smaller than the outer section and arranged therein with its bottom spaced from the bottom of the said outer section, the upper end of the inner section being flush with the upper end vof the outer section, filled partitions in the spaces between the sides and ends of the sections, said partitions extending from the bottom of the outer section to the tops of said sections, and forming two chambers, the outer one of which is closed attop and bottom and the inner one closed at top and opening at the bottom into the space between the bottoms of the sections, openended tubes extending through the upper portion of the outer section and through the partitions, Said tubes being apertured in the portion in the outer chamber, and a cover for the said box-sections, said cover being formed of two members and spacing-strips forming an air-space between the members, one of the spacing-strips being provided with opening leading into the air-space, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN M. DOPPEL; 

